Army Staff Sgt. Garrick Goodwin with the 82nd Airborne Division from Fort Bragg, NC instructs Jonathan Ciavolino of the Maryland Civil Air Patrol on proper handling of the M-4 at the 2011 Joint Service Open House, here May 20th . JSOH affords the public an excellent opportunity to meet and interact with the men and women of the Armed Forces and to showcase military equipment from the Navy, Marines, Army, Air Force, and Coast Guard. JSOH is planned and conducted by Total Force; Active, Guard, Reserve, Civilian employees, as well as retirees and family. (U.S. Marine Corps photo)